The event was held to celebrate NBC’s four Chicago-based TV shows – Chicago P.D., Chicago Fire, Chicago Med, and the upcoming series Chicago Justice. It included pumpkins carved with the series’ names and a real Chicago firefighting demonstration!

During this week’s episode, a new dog named Pouch was introduced to the series and he will grow up on the show!

“All firehouses have a million stories to tell about a firehouse dog, and we thought he would make a great addition,” executive producer Derek Haas said in a statement. “Pouch will literally grow up before our eyes. Plus, pets are great stress relievers, and firefighters and rescue squads are under tremendous pressure every day, so they will appreciate her presence as a working dog.”